US Consulate
Eko Atlantic City, V.I., Lagos
Dewatering and basement waterproofing with Krystol Internal Membrane (KIM)
Concrete durability specialists · Nigeria
Concrete that keeps water out — permanently.
We help you build structures that stand the test of time, resisting moisture damage and costly repairs. Our integral crystalline waterproofing systems protect your investment from day one.
50+ yr
Design life with minimal maintenance
1980
KIM pioneered by Kryton International
5
Independent certifications: NSF, CE, ASTM, ICC-ES, BBA
0
External membranes required
What we do
Six disciplines, one objective: durable, dry concrete.
From admixture supply and specification through dewatering, consulting and remedial repair — we cover the full lifecycle of concrete protection.
01
Integral Crystalline Waterproofing
Crystalline technology mixed directly into the concrete, turning the slab itself into a self-sealing barrier — no membrane, no peeling, no future repairs.
Learn more →02
Dewatering & Groundwater Control
Turnkey dewatering for foundations, below-grade construction, basements and pipelines — keeping sites dry, safe and buildable.
Learn more →03
Envelope Waterproofing Consulting
Expert consulting across the whole building envelope — basements, roofs, walls, terraces and joints.
Learn more →04
Concrete Construction Chemicals
High-performance waterproofing membranes, bonding agents, coatings, self-levelling screed and water tanks.
Learn more →05
Repairs, Maintenance & Restoration
Diagnosis and repair of cracks, leaks, corrosion and wear — addressing root causes, not just symptoms.
Learn more →06
Concrete & Screed Pump Hire
Precise, efficient placement for high-rises, tight sites and large slabs — reliable equipment with skilled operators.
Learn more →The core technology
Waterproofing that lives inside the concrete.
Traditional membranes sit on the surface. They can be punctured during backfill, they depend on installer skill, and when they fail below grade the repair means excavation.
Integral crystalline waterproofing takes a different route. The admixture is dosed into the mix at batching, where it reacts with water and unhydrated cement to grow needle-shaped crystals deep in the matrix — sealing capillary pores and micro-cracks from within.
| Applied | At batching, into the concrete itself |
|---|---|
| Coverage | Uniform, including hard-to-reach areas |
| New cracks | Self-seal on contact with water, for the life of the structure |
| Typical use | Basements, retaining walls, tanks, pools, roof slabs |
Products
Crystalline admixtures we supply and specify.
Krystol Internal Membrane (KIM)
The world’s original hydrophilic crystalline admixture — the most rigorously tested and certified solution of its kind.
Product detail →
Betosil
Powdered crystalline admixture with dual pressure resistance and self-healing action on cracks up to 0.4 mm.
Product detail →Selected projects
Specified on landmark structures across Nigeria.
JK Randle Centre for Yoruba Culture and History
Onikan, Lagos
Concrete repairs and waterproofing of leaking slabs
Kings Tower
Ikoyi, Lagos
KIM supply for basement waterproofing
The Belmonte
Ikoyi, Lagos
Dewatering services and groundwater control
Technology partners
We supply and specify systems from the people who invented them.
Kryton pioneered crystalline waterproofing in the 1970s. We hold the technical library, the certifications and the on-site training to specify it properly.
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Kryton International
Krystol crystalline waterproofing technology
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LATICRETE
Globally proven construction solutions
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BAUER
Foundation and geotechnical equipment
Clients
Trusted on the projects that can’t leak.
Contractors, developers, banks, manufacturers and diplomatic missions across Nigeria.
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Julius Berger -
Dangote -
MTN -
Total -
Standard Chartered -
FirstBank -
KPMG -
Flour Mills of Nigeria -
Nigerian Breweries -
Cappa & D’Alberto -
Construction Kaiser -
ITB Nigeria -
CCECC -
Pernix Group -
Nahman Construction -
De Simone Group -
ACCL -
Jagal -
UPDC -
FMDQ -
Mansard Insurance -
UICL -
Mövenpick -
High Point Properties -
Black Pelican Group -
Studio Emodi -
ATO
For professionals
Whatever your role on the project, water is your risk.
The commercial case for integral waterproofing looks different depending on where you sit. Pick your seat.
Owners / Developers
Protect your reputation, your asset value and your bottom line.
See the case →Structural Engineers
Specify with confidence — proven from the concrete up.
See the case →Architects
Durability that protects your vision — without visual compromise.
See the case →Quantity Surveyors
Accurate cost planning from day one — no hidden charges.
See the case →Common questions
Straight answers on waterproofing.
What is the best waterproofing solution for basements and underground structures?
Basements require a combination of solutions to prevent water ingress: crystalline waterproofing applied to concrete walls and floors, membrane waterproofing for exterior foundation walls, and proper drainage systems such as French drains and sump pumps.
How long does concrete waterproofing last?
It depends on the method. Crystalline waterproofing is permanent, as it integrates with the concrete. Liquid membranes last 5–15 years depending on quality and maintenance. Sheet membranes last 10–25 years depending on material and installation.
When is the best time to waterproof a structure?
At the beginning of the construction project. This ensures protection that guarantees durability and extends the lifespan of the structure.
Can waterproofing be applied to existing structures?
Yes. Waterproofing can be retrofitted to both intact and damaged structures. For remedial work we diagnose the cause of existing leaks and damage, then implement solutions to restore concrete integrity, including drainage improvements to divert water away from the structure.
Next step
Talk to a durability specialist
Send us your drawings or describe the problem. We review the site, identify risk areas and recommend a system tailored to your project.